Hi
@banderas20, and welcome! We haven't seen a SAMBA question in quite awhile, and I know I have forgotten a lot since I last had anything to do with this subject. I don't use SAMBA myself, but I find that Google has many websites that describe setting up this file sharing process.
Here is a very simple description that is a good review (even though it includes Mac OS, which you don't need).
But as far as "what is wrong?".... many things can go wrong. As the link above notes, be sure you are using Windows Workgroup and not Windows HomeGroup. Linux will not work with HomeGroup which is the normal Windows file/print sharing method since Windows 7. Your WIndows machine has to be set up just for simple TCP/IP based networking which Linux and SAMBA understands.
Besides just enabling SAMBA, you have to set up (on both Windows and Linux) what files/folders you want to share. You may need to create a separate SAMBA password to make the sharing connection work.
With your Gnome File Explorer, you might need "Browse Network" or "Connect to server" to see your Windows machine. I'm not using Gnome so I'm not sure of their File Explorer options offhand.
If you tell us which Debian version and which version of Windows you are using, I would try to duplicate your setup to note the steps involved. But this will be time consuming and I have to return to work tomorrow (and I work 12-hr shifts which leaves little free time).
One last question: Is SAMBA really what you want? Or do you just want the means to share files? And do you want to share files just within your home network, or also across an Internet connection? I use an app called
TeamViewer that is primarily a remote desktop program, but it will also do file transfers easily. It is free for personal use and has both Linux and WIndows versions that you can install if you want to go this method instead. But this may not be what you want... it usually requires a user to accept the connection and that a 4-digit password be provided. This is more secure, but I think there is a way to set it up to accept connections all the time (like if you wanted to connect to home computer from work or from vacation). Personally, I don't want to leave a computer on that will accept connections from the Internet, so this may or may not be an option for you.
Any way you want to go, we will try to help you along. Others may join in who are better skilled with SAMBA too.
Cheers